The Ten Commandments are part of the OT Law, but NT authors do quote or allude to the commandments quite often as being relevant for new covenant Christians (except for one).
"The Ten Commandments: The earliest surviving inscribed tablet of the Ten Commandments, incised during the late ...
Rep. Dodie Horton, R-Haughton, said an email from a Christian think tank called WallBuilders helped inspire her to introduce her Ten Commandments bill. Several weeks after reading the email ...